Join us to remove invasive Garlic Mustard and Bittersweet vines from Belle Isle Marsh, Boston’s largest remaining salt marsh. Gloves, bags, and all supplies provided; a DCR biologist will guide volunteers. Pre-registration required; space is limited. Meet by the parking lot. Activity includes walking mostly flat, unpaved trails and hand-pulling plants, with some uneven ground. Wear long sleeves/pants and bug spray. Learn more at mysticriver.org/belleislemarsh